====================================== | [ 12.482792][ T244] softirqs last disabled at (26017): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.482796][ T244] Preemption disabled at: | [ 12.482797][ T244] 0x0 | [ 12.482810][ T244] Tainted: [W]=WARN [ 12.482811][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.482813][ T244] Call Trace: [ 12.482816][ T244] [ 12.482818][ T244] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.482826][ T244] __might_resched.cold (kernel/sched/core.c:9234) [ 12.482833][ T244] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.482839][ T244] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.482847][ T244] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 12.482851][ T244] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.482860][ T244] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 12.482863][ T244] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.482869][ T244] put_chars (drivers/char/virtio_console.c:1176) [ 12.482873][ T244] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.482875][ T244] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.482882][ T244] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.482891][ T244] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.482902][ T244] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.482906][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.482910][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.482917][ T244] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.482923][ T244] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.482926][ T244] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 12.482931][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.482935][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.482942][ T244] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.482949][ T244] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.482952][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.482961][ T244] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.482965][ T244] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.482968][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.482971][ T244] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.482978][ T244] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.482980][ T244] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.482986][ T244] vprintk_emit (kernel/printk/printk.c:2479) [ 12.482992][ T244] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.482998][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.483004][ T244] _printk (kernel/printk/printk.c:2504) [ 12.483009][ T244] ? snapshot_read.cold (user.c:?) [ 12.483014][ T244] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 12.483018][ T244] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.483024][ T244] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 12.483029][ T244] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.483035][ T244] ? exit_notify (kernel/exit.c:780) [ 12.483037][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.483042][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.483049][ T244] do_group_exit (kernel/exit.c:1151) [ 12.483054][ T244] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.483057][ T244] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.483061][ T244] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.483065][ T244] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.483070][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.483074][ T244] RIP: 0033:0x7eff06b2f1b8 [ 12.483077][ T244] Code: Unable to access opcode bytes at 0x7eff06b2f18e. Code starting with the faulting instruction =========================================== [ 12.483079][ T244] RSP: 002b:00007ffc68d55b78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.483082][ T244] RAX: ffffffffffffffda RBX: 00007eff06c5ff88 RCX: 00007eff06b2f1b8 [ 12.483085][ T244] RDX: 00007eff06879fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.483086][ T244] RBP: 00007ffc68d55bd0 R08: 0000000000000000 R09: 0000000000008010 [ 12.483088][ T244] R10: 00007ffc68d55990 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print